Apparatus and method for the insufflation of gas into a body cavity
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United States of America Patent
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-
Jun 13, 1995
Grant Date -
N/A
app pub date -
May 28, 1993
filing date -
May 28, 1993
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A device is provided for controlling flow and pressure of a gas for insufflating the abdomen during laparoscopic surgery. Compressed gas from a tank passes through the device and is stepped down through multiple stages to a pressure under 25 psi. The resultant average pressure is then reduced to a desired pressure by passing the gas through a solenoid valve and manifold in a pulsating manner. Pressure and flow are constantly monitored with signals being sent to a microprocessor which adjusts the pulse width of the gas supply to compensate for any changes in pressure.
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Family
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Cited Art Landscape
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